8049257481 has 8 divisors (see below), whose sum is σ = 10749354304. Its totient is φ = 5357666160.

The previous prime is 8049257479. The next prime is 8049257483. The reversal of 8049257481 is 1847529408.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8049257479) and next prime (8049257483).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8049257481 - 2¹ = 8049257479 is a prime.

It is a super-2 number, since 2×8049257481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8049257481.

It is not an unprimeable number, because it can be changed into a prime (8049257483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2124166 + ... + 2127951.

It is an arithmetic number, because the mean of its divisors is an integer number (1343669288).

Almost surely, 2^8049257481 is an apocalyptic number.

It is an amenable number.

8049257481 is a deficient number, since it is larger than the sum of its proper divisors (2700096823).

8049257481 is a wasteful number, since it uses less digits than its factorization.

8049257481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252751.

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 8049257481 is about 89717.6542325979. The cubic root of 8049257481 is about 2004.0963941326.

The spelling of 8049257481 in words is "eight billion, forty-nine million, two hundred fifty-seven thousand, four hundred eighty-one".